document.write( "Question 213442: I havea problem and couldn't find a similar problem:
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document.write( "2 years ago a father was 4 times as old as his son. 3 years from now the father will be only 3 times as old as the son. how old is each now?\r
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document.write( "can you find a problem at least similar to this one?\r
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document.write( "thank you,
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document.write( "Destiny \n" );
document.write( "
Algebra.Com's Answer #161215 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! 2 years ago a father was 4 times as old as his son. 3 years from now the father will be only 3 times as old as the son. how old is each now? \n" ); document.write( "=================== \n" ); document.write( "Let father's age NOW be \"f\": \n" ); document.write( "Let son's age NOW be \"s\" \n" ); document.write( "-------------------------------- \n" ); document.write( "Equation: \n" ); document.write( "(f-2)=4(s-2) \n" ); document.write( "Equation: \n" ); document.write( "(f+3)= 3(s+3) \n" ); document.write( "------------------- \n" ); document.write( "Simplify both equations: \n" ); document.write( "f = 4s -8+2 \n" ); document.write( "f = 4s-6 \n" ); document.write( "and \n" ); document.write( "f = 3s+9-3 \n" ); document.write( "f = 3s+6 \n" ); document.write( "------------------- \n" ); document.write( "Equate the two expressions for \"f\": \n" ); document.write( "4s-6 = 3s+6 \n" ); document.write( "s = 12 yrs old (son's age NOW) \n" ); document.write( "--- \n" ); document.write( "Substitute into f = 3s+6 to solve for \"f\" \n" ); document.write( "f = 3*12+6 = 42 yrs old (father's age NOW) \n" ); document.write( "============================================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |